fix undefined variables in handleEditorChange function

Author: infinitnet

rdo.js

@@ -284,6 +284,8 @@ wp.plugins.registerPlugin('relevant-density-optimizer', {
 });
 
 let globalHighlightingState = false;
+let lastComputedContent = '';
+let lastComputedTerms = '';
 
 const handleEditorChange = () => {
     const newContent = selectData('core/editor').getEditedPostContent();

relevant-density-optimizer.php

@@ -6,14 +6,14 @@
  * Author URI: https://infinitnet.io/
  * Plugin URI: https://infinitnet.io/relevant-density-optimizer/
  * Update URI: https://github.com/infinitnet/relevant-density-optimizer
- * Version: 1.6.1
+ * Version: 1.6.2
  * License: GPLv3
  * Text Domain: relevant-density-optimizer
  */
 
 namespace Infinitnet\RDO;
 
-define('RDO_VERSION', '1.6.1');
+define('RDO_VERSION', '1.6.2');
 
 function rdo_enqueue_block_editor_assets() {
     if (!wp_script_is('rdo-plugin-js', 'enqueued')) {